Mainstream class group data is shown separately from standard/year-group enrolment data. The source does not identify which standard/year group each class group belongs to.
Average class size
26.86
2025/26
Mainstream classes
7
2025/26
Largest class group
37
2025/26
Classes with 30+ pupils
1
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2006/07
38
3
12.67
15
0
2007/08
63
3
21.00
23
0
2008/09
71
3
23.67
30
1
2009/10
96
4
24.00
31
1
2010/11
99
4
24.75
28
0
2011/12
97
4
24.25
30
1
2012/13
106
4
26.50
29
0
2013/14
106
4
26.50
30
1
2014/15
111
4
27.75
30
1
2015/16
109
4
27.25
30
2
2016/17
119
4
29.75
33
2
2017/18
123
5
24.60
32
2
2019/20
138
5
27.60
33
4
2020/21
143
5
28.60
37
2
2021/22
157
6
26.17
37
2
2022/23
164
6
27.33
32
2
2023/24
179
7
25.57
32
2
2024/25
178
7
25.43
29
0
2025/26
188
7
26.86
37
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2007/08: 38 in 2006/07 → 63, +25 pupils.
Biggest loss in a single year: 1993/94: 82 in 1983/84 → 49, -33 pupils.
Largest single-class increase: 4th Class in 2023/24 (10 → 25, +15).
Largest single-class decrease: 5th Class in 2023/24 (27 → 10, -17).
Largest cohort-step gain: SI → 1st in 2025/26 (26 → 34, +8).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (29 → 27, -2).
Overall: 77 (1974/75) → 200 (2025/26), 123.
Summary statistics (class-level data)
Min / max / mean enrolment per class across the available final by-standard years.
Class
Min
Max
Mean
Years
Junior Infants
21
26
24.2
6
Senior Infants
12
26
23.2
6
1st Class
12
34
25.0
6
2nd Class
11
30
22.0
6
3rd Class
11
27
20.8
6
4th Class
10
26
19.2
6
5th Class
10
27
17.7
6
6th Class
10
27
18.2
6
Total
19
200
86.7
43
Total enrolment over time
Total and gender trends use historical records where available. Class-level data starts in 2020/21.
Enrolment by gender over time
Enrolment by class over time
Cohort progression
Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).